metre

Metre is a unit of measurement of length. The definition for metre is the following:

1 metre is the distance light travels in 1/299 792 458 of a second in vacuum.

The symbol for metre is m

kilometer

Kilometer is a multiple of the meter unit. The kilo prefix stands for 1000 therefore, 1 kilometer = 1000 meter units. Meter is a unit of measurement of length. The definition for meter is the following: